<template>
	<div class="login_container">
		<div class="login_box">
			<div class="avatar_img">
				<img src="../assets/logo.png" alt="" />
			</div>

			<el-form
				ref="loginFormRef"
				label-width="0px"
				class="login_form"
				:model="form"
				:rules="rules"
			>
				<el-form-item prop="username">
					<el-input
						v-model="form.username"
						prefix-icon="iconfont icon-user"
					></el-input>
				</el-form-item>
				<!-- 密码 -->
				<el-form-item prop="password">
					<el-input
						type="password"
						v-model="form.password"
						prefix-icon="iconfont icon-3702mima"
					></el-input>
				</el-form-item>
				<!-- 按钮区域 -->
				<el-form-item class="btns">
					<el-button type="primary" @click="login">登录</el-button>
					<el-button type="info" @click="resetLogin">重置</el-button>
				</el-form-item>
			</el-form>
		</div>
	</div>
</template>
<script>
	export default {
		data() {
			return {
				form: {
					username: "admin",
					password: "123456",
				},
				// 表单的验证规则
				rules: {
					username: [
						{
							required: true,
							message: "请输入登录名称",
							trigger: "blur",
						},
						{
							min: 3,
							max: 10,
							message: "长度在 3 到 10 个字符",
							trigger: "blur",
						},
					],
					password: [
						{
							required: true,
							message: "请输入登录密码",
							trigger: "blur",
						},
						{
							min: 6,
							max: 15,
							message: "长度在 6 到 15 个字符",
							trigger: "blur",
						},
					],
				},
			};
		},
		mounted() {},
		methods: {
			resetLogin() {
				console.log(this);
				this.$refs.loginFormRef.resetField(); //重置   resetField  form表单的方法
			},
			login() {
				this.$refs.loginFormRef.validate(async (valid) => {
					console.log(valid);
					// valid 默认写法,布尔值  == 成功为true
					if (!valid) return;
					const { data: res } = await this.$http.post("login", this.form);
					console.log(res); //返回一个promise对象 用 async  await 解决
					if (res.meta.status != 200)
						return this.$message.error("登录失败");
					this.$message.success("登录成功");
					window.sessionStorage.setItem("token", res.data.token);
					this.$router.push("/home");
					// 1. 将登陆成功后  token 存储 到 sessionStorage
				});
			},
		},
	};
</script>

<style lang='less' scoped>
	.login_container {
		height: 100%;
		background-color: #2b4b6b;
		.login_box {
			width: 450px;
			height: 300px;
			background-color: #fff;
			border-radius: 3px;
			left: 50%;
			top: 50%;
			transform: translate(-50%, -50%);
			position: absolute;
			.avatar_img {
				width: 130px;
				height: 130px;
				border: 1px solid #eee;
				border-radius: 50%;
				padding: 10px;
				box-shadow: 0 0 10px #ddd;
				position: absolute;
				left: 50%;
				transform: translate(-50%, -50%);
				background-color: #fff;
				img {
					width: 100%;
					height: 100%;
					border-radius: 50%;
					background-color: #eee;
				}
			}
		}
	}
	.login_form {
		position: absolute;
		bottom: 0;
		width: 100%;
		padding: 0 20px;
		box-sizing: border-box;
	}
	.btns {
		display: flex;
		justify-content: flex-end;
	}
</style>  